Maths Problems 31 July 09

1. Mother gave Claire and Jane each a certain amount of money to spend.
If Claire spent $90 per day and Jane spent $30 per day, Claire would have $100 left when Jane had spent all her money. If Claire spent $30 per day and Jane $90 per day, Claire spent would have $580 left when Jane had spent all her money. Find the total amount of money given to Claire and Jane.

2. Mary and Jason each have some money. If Mary spent $80 per day and Jason spent $40 per day, Mary will have $500 left when Jason has spent all his money. If Mary spent $40 per day and Jason spent $80 per day, Mary will have $1100 left when Jason has spent all his money. What is the amount of money that Jason has?

Grammar check

1. one of my favourite hobby
2. both said in union
3. Where is it you saw that bird?
4. asked eagerily
5. everyone frozed
6. a flammingo
7. How can a flammingo appears around here?
8. oblivious to it's surrounding
9. I saw it flew towards here.
10. one of the men said and complaint.
11. It's heavy carrying all this birds.
12. I explains.
13. We rised from the bushes.
14. surrounding the two man
15. How a eventful day!

SW Foodies' Cafe

Suggested answer:

I was at Foodies' Cafe (1m) last Saturday to celebrate my birthday (1m) wih my parents. While serving the ice-cream, the waiter lost grip of the cup and a few drops of melted ice cream dripped on my watch (1m). The celebrative atmosphere was immediately dampened as the watch was a birthday present from my father. I cursed under my breath what rotten luck I had when the same waiter appeared again, totally apologetic, with some wet towels (1m) to clean off the ice-cream on my hand and watch.

A few moments later, Mr Alex, the manager of the restaurant, came to our table with another free cup of ice-cream (1m) as a gesture of apology (1m).

I was deeply impressed with their hospitable service and readiness to rectify a mistake. I will not hesitate to patronise the restaurant again for its quality food and service.

Diane Lim

CW: Hiking by Wei Long (unedited)

The hike started out fine, until I got stunned by the object that flew by me at high velocity.

I wondered what was that, and stole a glance at the direction of where it came from. There was nothing. Maybe the object is just an animal, so I carried on with the hike, keeping mum of what I saw to my classmates.

All of a sudden I got an illusion in my mind that the object was from a arisoka with a bayonet, which is … a Japanese weapon ! All I could think of is “Tell my friends, tell my friends ! “. So I did.

I beckoned then to stop for awhile. So Cloudia, Cynthia and Jin crowed around me as I told them about my illusion. Cynthia, a sharpshooter, gave me a convinced yet annoyed look, while the other two ignored me.

Then I got the illusion again. It was clearer this time, showing a Japanese man wielding the arisoka, aiming at a buliding, then the illusion faded away again. I was damn sure I saw the arisoka now. But what was the building ?

I went on hiking and expectedly, I got another illusion after some monets. It showed the Istana, the President’s house. I froze in my tracks.

Once again I told my friends about the illusion. We discussed that we better descend the hill, as we were risking our lives.

I said,”Maybe the President offended someone, or even people.” Upon reaching home I immediately surfed the net for latest news for any criminal escape or Japanese invasion. I saw a article about a Japanese man on a killing spree. I almost screamed.

I grabbed the telephone and dialled ‘999’ for the police to tell them about my illusions. Just then I got yet another illusion. It showed the trigger close-up, and someone pulling it. It made my heart beat doubly faster. Then I saw the explosion of the shot, then the full picture. It was actually lego. I blushed and told the police to take back what I said. Ohboy, what kind of illusion is that …

The next week, I received a phone call from the police. They said that I will be rewarded as because of the words I said saved the president’s life. So, was the illusion true, or not ?

Picture Writing: False Fire Alarm by Jing Jie (unedited)

“Town A and Town B were 250km apart…” Mr Tan droned on and on. Half the class was asleep and Jeff and Jock, the two most mischievous boys in school were bored to tears.
Jock’s face suddenly brightened. He turned to Jeff and whispered, “Since everyone is asleep, let us wake them up with a loud ring! The school fire alarm should be loud enough.”
Jeff immediately agreed. The two boys tried ways and means to get out of class. As Mr Tan knew about their notorious record, he did not allow them to leave no matter what.
Finally, it was recess, the two boys sneaked up to the fourth floor and tried to break open the fire alarm near their classroom. Their efforts were futile, as every punch or kick merely rattled the thick pane of glass.
Jeff was starting to get annoyed by the “unbreakable” glass cover and dashed into the classroom, took his water bottle and scurried to the toilet. As he filled up the bottle, he told Jock to fill his bottle with ice cubes from the canteen.
Both were laughing with glee as they stood before the fire alarm. “ Take that!” Jeff hollered as he swung the bottle right into the glass pane. The pane of glass cracked but did not give way.
Jock swung his bottle, and the glass gave way to the smashes.
The sound that the alarm made was horrifying as it rang and rang like a mad rooster. The pupils from the first floor covered their ears as the teachers went about asking what had happened.
Jeff and Jock chortled in ecstasy. So happy were the boys that they did not see the towering figure looming behind them. The figure tapped their shoulders and they spun around to see that the principal was standing behind them, folding her arms and looking sternly at the boys.
Pulling them by the ear, the principal took the boys to her office and slammed the door behind her.
Turning around, she took a deep breath and gave Jeff and Jock a good dressing down. Then she opened a cabinet and told the boys to pick any cane they fancied.
The downheartened boys picked randomly as they winced at the thought of the rattan leaving red marks on their bottoms.
Again by the ear, she pulled them to the field, where everyone was assembled. She then ordered the boys to touch their toes.
“These are the troublemakers who have annoyed us with their antics. This is the last straw….” The principal spoke as she tool a long and thick cane out from the stash.
“Smack!” The cane had hit its mark, as Jock groaned in agony, falling to his knees. The next smack was for Jeff, and he too fell to his knees, tears streaming down his cheeks.
The two boys went home with sore bottoms, and a very painful lesson.

Picture Writing - False Alarm by Belinda (unedited)

The hallway was deserted. There was not a single soul in sight. It was so quiet, so quiet till you could hear a pin drop. But the quietness was interrupted by two boys, Ken and Danny, who were notorious in school for their pranks on both teachers and students. Both of them were supposed to be at the canteen as it was recess time. However, they seemed to have grown tired in playing at the field and parade ground and they had come up to the third floor of the school, hungry for some fun.
“What do you want to do?” Danny asked in a bored voice, while at the same time, fiddling with his water bottle.
“How would I know? Anyway, we’re the only ones here. We can do whatever we want,” Ken shrugged as he looked around.
Suddenly, Ken caught sight of the fire alarm which was housed in a small cabinet with a glass pane in front. A mischievous thought struck Ken. A smirk started spreading on his face.
“Hey, Danny, look!” Ken pointed to the fire alarm. Danny turned around and caught sight of it. Danny glanced at Ken. Ken caught his eye and smiled a cunning smile.
As if the duo could read each others’ mind, they raced towards the fire alarm at top speed. Danny, being the faster one, reached the fire alarm first.
Danny turned his water bottle around, took aim, and hit the glass pane. The glass smashed into smithereens and instantly, the fire alarm came to life.
“Riiinng!” Too loud for comfort, the duo covered their ears.
“Nice one, Danny!” Ken shouted over the loud ringing as he hit his back lightly playfully.
Danny shrugged, which seemed to say: ‘It’s no big deal’. After about two minutes, the ringing stopped and the screams and squeals of the pupils could be heard on the ground floor. Both boys seemed to enjoy the screaming and shouting of the panicked pupils.
“Come on, let’s go down now. Someone might realize that we’re missing,” Ken nudged Danny.
Danny nodded and started running. But luck was not on their side.
“Stop! Both of you stop!” a loud voice thundered.
The boys froze in horror. Slowly, they turned around and got the shock of their lives! Their principal, Mr. Tan, was standing a few metres away from them, seething with rage.
Apparently, Mr. Tan had been watching them along. The boys stood rooted to the ground, with their mouths opening and closing, like fishes out of water.
“You boys are in deep trouble. Follow me to the office now!” Mr. Tan bawled.
Hobson’s choice, they followed Mr. Tan. Both Danny and Ken were prepared for the worst……

Picture Writing - Fire Alarm by Qi Jian (unedited)

Yan Bo and Pei bo were brothers. They studied in the same school. They were very clever but they were very mischievous. Once, they put super glue on their teacher’s chair. They were sent to the principal office and the principal gave them one more chance before they would be expelled from the school.
One day, Yan Bo and Pei Bo were walking along the classroom corridor. Out of the blue, something caught Pei Bo’s eyes. It was the newly-installed fire alarm.
Pei Bo thought of a plan. He told Yan Bo about it. A grinning sly appeared in their faces.
“What a good idea! It will surely work. Nobody will discover it is ur, ”Yan Bo muttered in enthusiasm, totally impressed with his brother’s idea.
After the English period was recess. The two boys lied to the teacher that they had to stay in the classroom because the Chinese teacher had punished them to stay in the classroom to do their homework. The teacher allowed them to stay in the classroom while the teacher took the other students for recess.
Pei Bo and Yan Bo swiveled their head to make sure all the teachers and students had gone down for recess. They started arming themselves with water bottles and hit the fire alarm.
The glass was broken into smithereens and the sound of the fire alarm reverberated through the air.
Quickly, Yan Bo took a few match sticks, lit them up and burned the teacher’s desk. The two boys quickly darted off to the field.
Within seconds, an announcement was made.
“All teachers and prefects, please escort all pupils to the field immediately,” the principal announced.
Adrenaline coursed through every vein the pupils. Some girls screamed at the top of their voices. Prefects raised their voice by a few decibels calling them to evacuate the canteen immediately.
Fire-fighters were called up to put off the fire. Yan Bi and Pei Bo quickly found their class and sat down, pretending that nothing had happened.
Smokes were billowing out of 6-9 classroom. The sirens of the fore-fighters vibrated thought the air. The fore-fighters quickly took the water hose and tried to put out the fire.
After a thorough fight with the fire, the fire were put off.
“All students, please bring your belongings and go home right away, but I want to see Yan Bo and Pei Bo,” the principal said.
Scare mingled with curiosity, the two boys went to the principla’s office. They knew they were in deep trouble.
“You two must have conspired right?” the principal bellowed like a bear.
“What do you mean? We did not do any do any bad things today,” Yan Bo denied, not at all guilty.
After much investigation, the boys admitted that they had burnt the classroom and hit the fire alarm. They would be expelled form the school. Sadness and regret engulfed them. Through this incident, the two naughty and mischievous boys turned into a kind and helpful boys.
What a miracle! A costly lemon too!

Picture Writing - Fire Alarm by Navethira (unedited)

Finally, recess time arrived. My tummy was rumbling. Upon reaching the canteen, I realized that I had left my wallet in class. Frustrated, I dashed back to class to get my wallet. But the sight that greeted me left my mouth agape. Someone had rummaged through my school bag, leaving my books and files scattered all over the floor except for my wallet.
Then out of nowhere, I heard two people whispering. They seemed to be counting money. It was then that it struck me that someone had stolen my wallet which had cash worth hundred of dollars. This was the money that I was going to use to pay my tuition fee later that afternoon. How careless could I be! I then started to panic as I knew that I would be in hot soup if my parents came to know that I had lost my money .thinking of who could have stolen my money, I stood there rooted to the ground.
Then it dawned on me that only Daniel and Tom who sit beside me in class knew about my money. Soon the whispering grew louder. I immediately peered out of the window. As suspected, it was Daniel and Tom, holding my leather wallet.
“Hey! Give my wallet back to me!” I shouted as loud as possible. “No way!” they shouted back. “What kind of classmates, are you?” I cursed under my breath. But both of them turned a deaf ear to my words till I said that I was going to inform my teacher about this.
Knowing the consequences, the boys got a little worried and so they threatened me. Being stubborn I stood firm on my decision. Daniel became agitated. He was furious. In anger, in a blink of an eye, Daniel jabbed on the fire alarm button. The blaring of the fire alarm filled the air. The alarm was so loud that my eardrums were about to burst. Without delay, I raced out of my classroom towards the alarm while they ran towards the canteen innocently. My attempts to stop the alarm were futile.
Meanwhile, a teacher who just had came up to my class spotted me. With her hands on her hips, she dragged me to the principal’s office without confirming if I was the one who had activated the false alarm while the other pupils including Daniel and Tom who got me into this mess were assembling at the school field.
There at the principal’s office, my efforts to explain myself was fruitless I was going to be punished for nothing. Anxiety mingled with fear. Terror seized me. I was robbed of words. I then started to pray earnestly that a miracle would happen.
Just then my form teacher Madam Tan stormed into the room with a video tape in her hand. She addressed the issue and played the recordings of the video taken by the hidden circuit camera, while I was at the brink of tears. My prayers were answered. The recording showed Daniel’s and Tom’s doings. Upon seeing this, I was as happy as a lark and to have had faith and trust I me.
Meanwhile, thinking that they would be left scot-free, Daniel and Tom were giggling away. They did not see the storm brewing ahead of them. They were then confronted by the principal. My wallet was returned to me while Daniel and Tom were severely punished by being suspended from school. They then realized that “honesty is the best policy” and regretted their actions while I had recess happily with my friends.

What would you do? SEL lessons

Situation 1
You were surfing the internet when suddenly there is a pop-up screen showing some inappropriate content.

You are curious about the content but yet you know it is not right for you to continue as the content might make you feel uncomfortable.

What would you do? Why?

Situation 2

You are 14 years old. You want to stay out later than 9 pm. Your mother insists that you have to be home by 9 pm tonight as there is school the next day.

What would you do? Why?

Jin Hao's Picture Writing - False Fire Alarm (unedited)

Whenever Jack read in the newspaper reports about fire, he would always remember the funny day he had with his classmate, Colin.
“Come on, jack .Do it!”coaxed Colin .
‘But what if … what if the principal or anyone walks past?”said jack ,frightfully.
“Don’t be such a scaredy -cat. Are you afraid?” teased Colin.
Intimidated by Colin’s words, Jack quickly swung his bottle at the fire alarm. The glass cover smashed to smithereens and the fire alarm went off. Jack and Colin immediately ran off. Little did they know that a security camera was there, and the security guard was watching their every move.
Panting from running such a long distance, two boys immediately sat down on a bench. Colin immediately slapped Jack’s back and said, “You did very well.”
They did not hear heavy footsteps behind them. The security guard had come down, and clutched both boys by their collars. He pulled them all the way to the office and told the principal the whole situation.
The security guard was smiling in a most superior way. But as for Colin and Jack, they were trembling from head to toe.
The principal thought hard but before he could dish out any punishment to the two boys for their misbehaviour, one of the students from Primary 6A rushed into the office.
“Mr Wong, the school is on fire !” exclaimed the boy, panting heavily. The principal quickly notified everyone in the school to quickly evacuate to the school field by the PA system. He then called the fire station to come and put out the fire. The fire fighters arrived and dispatched men to put out the fire.
The firemen investigated and traced the fire to the security room. It was actually the security guard’s fault when he went out of the room before switching off the switch.
The switch was overloaded with too many plugs which actually caught fire. The security guard was red in the face and had nothing to say. He walked out briskly from the principal’s office. As for Colin and Jack, their punishment was to clean up the burnt security office wall. But they were soon playing with water that was supposed to wash the wall. Oh, what are they going to do the next time ?

Problem Sums 20 July 09

A shopkeeper had some red and blue pens. The number of red pens was 25% of the total number of pens. After selling away 30 red pens and 30 blue pens, the number of red pens became 25% of the number of blue pens left. How many pens did he have at first?

Wayne had five more 50-cent coins than 20-cent coins. After he used eight 50-cent coins, the value of 50-cent coins is $1.50 more than the value of 20-cent coins. How many coins did he have at first?

Racial Harmony Day

Dear Pupils

Come next Tuesday (21 July 2009), we will be commemorating Racial Harmony Day. On the day, we will be playing the Chinese Chess and Tigers and Goats on the chess boards that you will be making over the next few days.

We can play Chinese Chess on ready made boards but we will have to make the boards for Tigers and Goats. I would want all of you to form into groups of 5 get the boards done in the weekend. Each group must have a Chinese Chess set and Tigers and Goats set on Tuesday.

I am eager to find out who will be game enough to try out on the traditional toy Tapak Kuda. You will need two identical cans, preferably short and wide, and a piece of long string to make this toy.

Please set aside your precious time to have some fun in the making of either the chess boards of the Tapak Kuda. I am sure you will find great learning points in the process.

I can't wait to see your creations and play them next Tuesday!

Cheers
Mdm Toh

Maths Problem Sums 10 July 09

1. Both Rashid and Bryan have some marbles. If Rashid gives 8 of his marbles to Bryan, he will have thrice as many marbles as Bryan. If Rashid gives 14 of his marbles to Bryan, he will have twice as many marbles as Bryan. How many marbles does each of them have?

2. If Belinda gives Cathy $14, Belinda will have twice as much money as Cathy. If Cathy gives Belinda $21, Belinda will have 5 times as much money as Cathy. How much money does Cathy have at first?

Maths Problem Sums 9 July 09

1. Kelvin has some 10-cent, 20-cent and 50-cent coins. The number of 10-cent coins is 3 1/2 times the number of 20-cent coins. The number of 20-cent coins is twice the number of 50-cent coins. The value of the 10-cent coins is $16 more than the total value of the 50-cent coins. How many coins does Kelvin have altogether?

2. 40% of the workers in a factory are foreigners. The rest are Singaporeans. There are 72 male foreigners. The remaining 5/8 of the foreigners are female. If there are 216 female Singaporeans, what percentage of the total workers in the factory are male Singaporeans?

3. Raju travelled 7/12 of his journey at an average speed of 84 km/h for 2 hours. If he travelled at 48 km/h for the remaining journey, what is his average speed for the whole journey?

4. Ernie has between 20 to 70 guppies. When he tried to put the guppies equally into 5 glass bowls, the last bowl was short of 2 guppies. When he tried to put them equally into 7 glass bowls, the last bowl was short of 4 guppies. How many guppies did he have? (Write down the smallest possible number)

5. Mr Tan gave his wife 15% of his salary every month. When his salary was reduced by 30%, he gave her 30% less than the usual amount that he gave her each month. His wife then received $840. What was Mr Tan’s original salary?

Maths Problem Sums 8 July 09

1. Jamie and Stella shared $640 between themselves. When their father gave them
another $100 each, Stella had 32% less money than Jamie.
(a) how much money had Stella in the end? (3m)
(b) What was the ratio of Stella's money to Jamie's money at first? (2m)

2. Mrs Tan bought 20 books and pens for $118.
One week later, she sold 4 pens. Then she had the same number of pens and books left. Each book cost $1.00 more than each pen. How much did he pay for the books? (5m)

3. Alan, Ben and Colin bought a present for their father. The ratio of the amount paid by Alan to the total amount paid by Ben and Colin is 1: 3. The amount paid by Ben to the total amount paid by Alan and Colin is 1:5. If Colin paid $60 more than Ben did, how much did the present cost? (5m)

4. Tom had 1/2 the number of stickers Jerry had at first. After Jerry gave 12 of his stickers to Tom, Tom had 2/3 the number of stickers Jerry had. How many stickers did Tom have at first ? (5m)

5. There were 3600 adults at the Singapore Idol audition. However, only of the 5/6 men and 2/3 of the women present took part in the audition. Altogether, 2520 adults took part.
How many women and how many men took part in the audition? (5m)

6. A container weighs 0.466 kg when it is 2/3 filled with coffee powder. It weighs 0.406 kg when 1/4 of the coffee powder is removed. What is the mass of the container when it is empty? (4m)

7. Mr Toad fell into a well that is 335 cm deep on Sunday night. On Monday, he climbed 120 cm up the well but slipped 40 cm down by night time. On Tuesday, he climbed 110 cm up the well and slipped 40 cm again that night. Each day Mr Toad managed to climb 10 cm less than the day before but slipped the same distance by night. On which day did Mr Toad get out of the well ? (4m)

CW Qi Jian

15 13 28
A good attempt. Quite exciting but you should have named your friend. He is one of the main characters.

1. It happened 5 years ago.
2. Frightened mingled with curiosity

CW Nadiah

16 13 29
Excellent content. Watch your language more carefully.

1. totally worn out
2. my heart was about to explode
3. excruciating pain
4. replied with an apology


1. made me jolted
2. walked extremely slow
3. reached at the other side of the bush
4. chirped in excruciating pain
5. I blushed that my cheeks were even redder that I could not mask my bright red cheeks.
6. William and I was
7. My mouth just went wide agape.

CW Emerson

10 12 22
Story is too short. Many parts have missing details.

1 As for John, it was a minor injury.
2. He would bring it to SPCA.

CW Rodrick

13 13 26
Misread question. Wrote about friends instead of 'best friend'. Paragraph your direct speeches.

1. somorsalts

CW Jia Yi

14 13 27
Some parts are not clearly expressed. Need to work on the ending.

1. froze in my tracks
2. she said, clearly offended.

1. said under my breathe
2. why are you stopping?
3. distintively

CW Wei Long

14 13 27
Good improvement in content. Keep it up.

1. my heart was palpitating
2. aggressive fire ants

1. courageness
2. the content of the bushes

CW Naazilah

14 13 27
Some loops in the story. Needs more information so that readers will not be confused. Many careless mistakes in Grammar.

1. grinning slyly

1. pleading and whinning
2. run the whole stretch covered by forest park
3. I could here voices.
4. Sweats trickled down.
5. spectecles
6. Questions were racing around my brain.
7.It was a muscular men.
8. The stout little men.
9. How could I forgot?
10. has pass

CW Xi Min

13 13 26
Needs to be more specific and vivid in your expression.

1. check out the stuff behind the bush
2. A flying squirrel was on the ground lay there motionless.
3. an early morning exercise became a morning squirrel rescue.

CW Xiao Qi

Good effort put in. Keep it up.
16 14 30

1. a rustling noise
2. an animal shelter


1. staring at the puppies mouth wide agape
2. When he came back, uncle had arrived.

CW Jing Jie

16 15 31
Good piece. Keep it up. Paragraph your speeches. Watch your punctuation when using direct speeches.

1. pondering over something
2. peered into the bush
3. He stammered, his voice barely a whisper
4. Its leg was injured and was bruised and battered.
5. I crouched down and scooped the puppy into my arms, cradling it.
6. My hopes were shattered
7. a furious struggle with my emotions
8. I nodded gravely
9. choked with emotions


1. "A... a rustling sound." He stammered.
2. Jack smiled and said "We should bring it to a vet. There is one beside my block."

CW Navethira

Good piece but too many careless mistakes.
16 13 29

1. My palms were turning cold and clammy.
2. acted promptly

1. It a fine Sunday morning.
2. just few blocks away
3. persperation
4. Come hear quick
5. Being Advantgerous girls
6. curiousity
7. one of the man
8. The taller man stated to drive the car.
9. foehead
10.we were brought to a dark room.
11. pratical

Maths Practice 3 results

Congratulations to those who have done well and shown improvements!
For those B graders, you still have time to catch up if you don't give up now.
To Yuan Bin, I hope this serves as a wake-up call. Complacency is the biggest enemy of success.

Haszirah 29 45 74 B
Yun Shan ? 33.5 ? ?
Navethira 36 42 78 A
Naazilah 34 49 83 A
Guan Min 35 31.5 66.5 B
Qi Jian 40 51 91 A*
Yan Bo 40 54 94 A*
Yuan Bin 22 18 40 D
Belinda 30 33 63 B
Edrick 31 39 70 B
Jia Yi 38 23 61 B
Emerson 35 46 81 A
Jing Ni 39 5 97 A*
Asyraf 33 41 74 B
Eugene 31 29 60 B
Shirley 34 2 62 B
Jia Hui 37 46 83 A
Christabel 35 43 78 A
Hwee Hean 38 47 85 A
Kah Lok 36 54 90 A
Tricia 31 37 68 B
Yan Zhen 39 51 90 A
Jing Jie 29 57 86 A
Wei Long 37 56 93 A*
Qian Wei 32 51.5 83.5 A
Ajmal 33 49.5 82.5 A
Wei Deng 30 53 83 A
Rodrick 30 42 72 A
Xiao Qi 27 58 85 A

SW - Letter to Residents (Lost Rabbit)

Take note of the following common mistakes:

1. 2nd October 2008 --> Wrong
2 October 2008 --> Correct
'nd' is not necessary after the numeral 2. Some pupils wrote as 2th!
Some left out the year.

2. I had lost... --> Wrong
I lost ---> Correct
"had lost" is past participle. Refer to the first point. It says 'the date
you lost your rabbit', NOT 'the date you had lost your rabbit'.

3. blk 53 --> Wrong
Blk 53 --> Correct
This is a proper noun. Hence, the first letter must be capitalised.

4. Blk 53 -->incomplete information
lift lobby at Blk 53 --> complete information

5. The two physical features is... --> Wrong
The two physical features are... --> Correct
Subject-verb agreement. Subject (The two physical features) is plural.

6. favourite food and favourite toy are not examples of physical features.
Physical features refers to characteristics of the physique/body.
The two physical features are:
- female
- brown and white

7. heart condition. --> Wrong
a/her heart condition. --> Correct
'a heart condition' is a singular noun. Hence, it needs a quantifier. In
this example, the quantifier is 'a'.

Suggested answer:

4 October 2008

Lost Rabbit

Dear residents

I have lost my pet rabbit, Dottie, on 2 October 2008 (1m). I was at the lift lobby of Blk 53 (1m) when I found out that my rabbit was missing.

Dottie is a female (1m) and has brown and white fur (1m). She is in need of care because of her heart condition (1m). I can be contacted at 97897894 (1m).

Thank you for your attention.

Regards
Nelly

Maths Problem Sums 2 July 09

1. There were some commuters in a bus. The ratio of the number of adults to children was 5 : 3. The ratio of the number of boys to the number of girls was 4 : 3. If there were 3 boys more than the number of girls and 5 more men than women, how many men were there in the bus (not including the driver)? (4m)

2. A rectangular fish tank has a layer of coloured marbles covering the bottom of the tank. The volume of the layer of marbles is 6 000 cm3. Water is filled from a tap at a rate of 4 litres per minute until the fish tank becomes 3/4 filled. The capacity of the fish tank is 70 cm by 60 cm by 40 cm. (4m)

(i) Find the volume of the water in the tank.
(ii) How long does it take to fill 3/4 of the fish tank with water?

3. A school bus can carry a total of 30 adults or 45 children. If there were 84 adults and 50 children already seated in 5 school buses, how many more children can be seated in these 5 school buses? (4m)

4. Mrs Tan bought 20 books and pens for $118. One week later, she sold 4 pens. Then she had the same number of pens and books left. Each book cost $1.00 more than each pen. How much did he pay for the books? (5m)

5. Jamie and Stella shared $640 between themselves. When their father gave them another $100 each, Stella had 32% less money than Jamie.
(a) how much money had Stella in the end? (3m)
(b) What was the ratio of Stella’s money to Jamie’s money at first? (2m)

6. There were 150 band members at first. When the number of boys increased by 20% and the number of girls decreased by 10%, the number of children in the band became 165. How many boys were there in the band at first? (5m)

7. The mass of a sack is 48 kg when it is 15/16 filled with rice. Its mass is 39 kg when it is 3/4 filled with rice. What is the mass of the sack when it is half-filled with rice? (3m)

Maths Problem Solving

1. Kit and May each have some money. If Kit spends $80, the ratio of the amount of money Kit has to the amount that May has will become 4:7. If May spends $80, the ratio will become 6:5. How much money do the girls have altogether? (5m)

2. There is 40% more water in Tank A than in Tank B. If I transfer 45 ml of water from Tank A to Tank B, Tank B will have 25% more water than
Tank A. What is the total amount of water in Tank A and Tank B? (5m)

3. If Jeff adds 1 to the numerator of a fraction, the fraction becomes one
whole. If he adds 4 to the denominator, the fraction becomes 1/2. What is the fraction? (3m)

4. I run 1600 m at the NAPFA Test. If I run 400 m and walk 1200 m, I
will take 30 minute. If I run 800 m and walk 800 m, I will need 6 minute less. How long will I take to complete the run if I run all 1600 m? (4m)

5. Donald usually drives at 90 km/h from his home to his office. Last Friday, he decreased his speed by 30 km/h and arrived at his office 10 minutes later. What is the distance between his house and his office? (4m)

6. Paul and Tim began a race together. When Paul finished the race in 30 min, Tim was only 4/7 through the race. If Paul ran 6 km/h faster than Tim, what was Tim's speed in km/h? (4m)

7. Chris has 480 more stamps than Dill. If Dill gives Chris 20 stamps, Chris will have 40% more stamps than Dill. How many stamps does Chris have? (4m)